Fire-extinguishing means.



F. G. SIMSON.

FIRE EXTINGUISHING MEANS.

APPLIOATION FILED JAN.27,1912.

1,087,989. I Patented Feb. 24, 1914.

fill/2105M fibre. I 10 1'1 '10 B WITNESSES INVENTUH F. D. 5| M SD N Z i BY; ATTY.

FRANCIS coox-srmson, or HALIFAX, NOVA sco'rIA, CANADA.

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Application filed January 27, 1912. SerialNo. 673,733.

To all whom it may concern Be it known that I, FRANCIS Coon SIM- soN, a subject of. the King of Great Britain, iii

goods or material on which it is used, and which will be of particular advantage in extinguishing fires where it is diflicult or impracticable to use water or other liquld.

The invention will be found particularly advantageous for extinguishing fire in the hold of a ship, or for use in connection with sprinkler systems where water is at present used, and where the accidental operation of the same would injure large quantities of goods.

A still further application of the invention is to soda water fountains, to obviate the danger of explosion of the carbon dioxid containers, and its object is to cause such containers to become a source of safety rather than a source of danger to the building in which they are located.

A still further object of the invention is to enable the heat to have facility of access to the plugs of fusible material and to prevent the holes being plugged during discharge.

In accordance with the present invention the fire is adapted to be extinguished by compressed non-inflammable gas adapted to smother the same and to be released through the melting of fusible plugs or the like which project beyond the pipes so as to be exposed to the atmosphere in the place in which they are located, which plugs are adapted to normally retain the gas in the pipes or container, all as hereinafter more fully set forth and described in the accompanying specification and drawing.

In the drawings, Figure 1 is an elevation showing an application of my invention to a sprinkler system. Fig. 2 is an enlarged sectional detail through the sprinkler p1pe. Fig. 3 is a cross sectional detail through the pipe;

In the drawings like characters of reference indicate corresponding parts in all the gures.

' Referring to the drawings, A represents I a container of any form, preferably metallic, adapted to contain non-inflammable gas such as carbon dioxid or chlorin, under considerable pressure. It will be'found most convenient to employ carbon dioxid, owing to the facility with which it may be compressed, but it will be understood that the invention is intended to include any form of gas which will smother the fire.

Leading from the source of'supply A, are the pipes B or other suitable containing or conveying means of the sprinkler system, said pipes extending to wherever it is desired to extinguish a fire, in a manner now well known in the art. These pipes are formed with perforations 10, closed by plugs llof fusible material adapted to fuse at an excessive temperature and permit the compressed gas in the interior to be discharged therefrom, said discharging. gas operating to smother any fire which is started.

In accordance with the present invention the plugs 11 are adapted to project firdlS- tance outwardly from the surface of the pipe whereby they will expose a greater surface to the heated atmosphere in the case of fire. The retention of these plugs in position in the perforations may be facilitated by the employment of a cylindrical covering 23 of gauze, wire nettin or perforated metal. The projection of t e softmetal plugs for a quarter of an inch or more from the surface of the pipe is also a considerable advantage as it adds materially to the rapidity of the melting.

The advantage of the compressed gas is that it will not injure the goods on which it Specification of Letters Patent. Fatented Feb. 2a, 1914;. i

is used, and it may be used on any location i where it would be impracticable and undesirable to use water.

As many changes could be made inthe above construction and many apparently widely different embodiments of my invention, within the scope of the claim, constructed without departing from the spirit or scope thereof, it is intended/that all matter contained in the accompanying specification and drawings, shall be interpreted as illustrative and not ina limiting sense.

The compressed gas has a further advantage over water in that it difi'uses more readily and in the case of a wall it will diflz'use to w smother the flame instead of clinging to the material.

What I claim as my invention is:

A cylindrical carbon dioxid container having a pipe connected thereto, an outlet in said pipe, a fusible lug normally closing said outlet, and a metallic securing member encircling and embracing said pipe and engaging said plug, said member being memes hand in the presence of two witnesses.

FRANCIS COOK SIMSON.

Witnesses:

RUssEL S. SMART, WM. A. WYMAN. 

